<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>数组转换为字符串</title>
</head>
<body>
    <script>
        // 1  toString()
        var arr = [1,2,3];
        console.log(arr.toString());

        // 2  join(分隔符)
        var arr1 = ['zz','zx','za']
        console.log(arr1.join('&'));   // 不写分隔符 默认为 逗号  分隔符 随便写

    </script>
</body>
</html>